Home / 198,637.72-274,117.02-107,992.96

Finding the Fourth Proportional to 198,637.72, 274,117.02 and 107,992.96

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Solution

The fourth proportional to 198,637.72, 274,117.02 and 107,992.96 is: 149,028.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,637.72 : 274,117.02 = 107,992.96 : x
  2. Step 2: Convert to fraction form
    198,637.72/274,117.02 = 107,992.96/x
  3. Step 3: Cross multiply
    198,637.72x = 274,117.02 × 107,992.96
  4. Step 4: Simplify right side
    198,637.72x = 29,602,708,376.18
  5. Step 5: Solve for x
    x = 29,602,708,376.18/198,637.72
  6. Step 6: Final answer
    x = 149,028.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.